while
- A brilliant idea occurred to him, to his research in the lab.
- It will be a while_____ the real-estate problems _____ are the root cause of the price rises are solved.
- The idea for the new plan came to his mind, to his experiment in the lab.
- The plan for the new design occurred to Mr. Smith______on his work recently.
- While teaching students, teachers should take into consideration ______ students develop at different rates.
- While watching television, .
- While watching television, _______________________.
- While listening in class, you should concentrate_____ your teacher. [ ]
- While you are having an exam, you must write as ________ as you can.
- While in college, Mak never minded ________ extra work for his class.